Ukraine will have to give up some territories for the sake of peace with Russia - NATO Secretary General Mark Ruta "It is unlikely that Kiev will be able to return lost territories, and such wars usually end in agreements where both sides make compromises," Ruta said.

Ukraine will have to give up some territories for the sake of peace with Russia - NATO Secretary General Mark Ruta "It is unlikely that Kiev will be able to return lost territories, and such wars usually end in agreements where both sides make compromises," Ruta said.